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TW202120031A - Expandable vertebral device with triangular connection beam - Google Patents

Expandable vertebral device with triangular connection beam Download PDF

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Publication number
TW202120031A
TW202120031A TW108141587A TW108141587A TW202120031A TW 202120031 A TW202120031 A TW 202120031A TW 108141587 A TW108141587 A TW 108141587A TW 108141587 A TW108141587 A TW 108141587A TW 202120031 A TW202120031 A TW 202120031A
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TW
Taiwan
Prior art keywords
connecting rod
shaft
expansion device
item
patent application
Prior art date
Application number
TW108141587A
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Chinese (zh)
Inventor
陳立生
趙哲揚
高立寰
Original Assignee
柏力科技股份有限公司
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Publication date
Application filed by 柏力科技股份有限公司 filed Critical 柏力科技股份有限公司
Priority to TW108141587A priority Critical patent/TW202120031A/en
Priority to KR1020200150025A priority patent/KR20210060328A/en
Priority to US17/096,707 priority patent/US20210145601A1/en
Priority to EP20207458.9A priority patent/EP3824833A1/en
Priority to JP2020189278A priority patent/JP2021079100A/en
Publication of TW202120031A publication Critical patent/TW202120031A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
    • A61B17/8852—Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc
    • A61B17/8858—Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc laterally or radially expansible
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
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    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
    • A61B17/7098—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants wherein the implant is permeable or has openings, e.g. fenestrated screw
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30471—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A—HUMAN NECESSITIES
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30579—Special structural features of bone or joint prostheses not otherwise provided for with mechanically expandable devices, e.g. fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The present invention provides an expandable vertebral device with triangular connection beam, comprising: a rotatable center shaft; a fixed part, wherein the rotatable center shaft penetrates through the fixed part and is rotatable relative to the fixed part; a movable slide, surrounding a portion of the rotatable center shaft, and is movable along an axis direction of the rotatable center shaft in response to a rotation of the rotatable center shaft; at least one first connection beam, which is rotatably connected to the fixed part; at least one second connection beam, which is rotatably connected to the movable slide, and is rotatably connected to the corresponding first connection beam; whereby when the rotatable center shaft rotates within the fixed part so that the movable slide moves away from the fixed part, the first and second connection beams are expanded to restore a vertebra to its original shape.

Description

三角連桿式椎骨撐開裝置Triangular connecting rod type vertebra support device

本發明有關於一種三角連桿式椎骨撐開裝置，特別是指一種能夠在植入人體後，藉由三角連桿向上、下兩方向擴張，以撐開椎骨達到復位治療效果的椎骨撐開裝置。The present invention relates to a triangular connecting rod type vertebral support device, in particular to a vertebral support device capable of expanding the vertebrae in the upward and downward directions through the triangular connecting rod after implantation in the human body to achieve the reduction treatment effect .

當人體脊椎骨（例如頸椎、胸椎、腰椎、）受到壓迫性骨折（Compression fracture）、或是因骨質密度不佳而塌陷時，需要使用椎骨撐開裝置，植入人體椎骨中，將脊椎椎體往上、下兩方向撐開，以達到復位治療的效果。有關椎骨撐開裝置的先前技術，例如可參閱US 7,846,206 B2，US 9,414,933B2，以及TW I589266。When human vertebrae (such as cervical, thoracic, lumbar vertebrae) suffer from compression fractures or collapse due to poor bone density, a vertebral support device is required to be implanted in the human vertebrae to move the vertebral body to Open up and down in two directions to achieve the effect of reduction therapy. Regarding the prior art of the vertebral distraction device, for example, refer to US 7,846,206 B2, US 9,414,933 B2, and TW I589266.

本發明採用與前述先前技術不同的三角連桿式機械結構，可省略先前技術中的零件，並有較佳之抵抗變形效果。The present invention adopts a triangular link type mechanical structure which is different from the foregoing prior art, which can omit the parts in the prior art and has a better effect of resisting deformation.

就其中一觀點言，本發明提供了一種三角連桿式椎骨撐開裝置，包含：一軸心；一固定部，其中該軸心穿過該固定部、並可相對於該固定部而轉動；一移動塊，套連在該軸心上，並可因應軸心的轉動而在軸心的軸向上移動；至少一第一連接桿，與固定部彼此以可相對轉動的方式連接；至少一第二連接桿，與移動塊彼此以可相對轉動的方式連接，且與對應的第一連接桿彼此以可相對轉動的方式連接；藉此，當軸心在固定部內轉動，導致移動塊遠離固定部時，第一連接桿與第二連接桿被撐開，以撐開脊椎骨。In one aspect, the present invention provides a triangular link type vertebral expansion device, comprising: a shaft center; a fixed part, wherein the shaft center passes through the fixed part and can rotate relative to the fixed part; A moving block is sleeved on the shaft and can move in the axial direction of the shaft in response to the rotation of the shaft; at least one first connecting rod is connected to the fixed part in a relatively rotatable manner; at least one The two connecting rods are connected to each other in a relatively rotatable manner with the moving block, and are connected to each other in a relatively rotatable manner with the corresponding first connecting rod; thereby, when the shaft center rotates in the fixed part, the moving block is moved away from the fixed part At this time, the first connecting rod and the second connecting rod are stretched to stretch the vertebrae.

在一種較佳的實施型態中，該第一連接桿較該第二連接桿為長。In a preferred embodiment, the first connecting rod is longer than the second connecting rod.

在一種較佳的實施型態中，該軸心的外圍及該移動塊的內緣設有螺紋。In a preferred embodiment, threads are provided on the periphery of the shaft center and the inner edge of the moving block.

在一種較佳的實施型態中，該軸心的外圍包含一凸緣，可供抵接該固定部。In a preferred embodiment, the periphery of the shaft center includes a flange for abutting against the fixing portion.

在一種較佳的實施型態中，三角連桿式椎骨撐開裝置，更包含至少一螺帽，栓於該軸心的至少一端。In a preferred embodiment, the triangular connecting rod type vertebral expansion device further includes at least one nut bolted to at least one end of the shaft center.

在一種較佳的實施型態中，該軸心的內部為中空，且設有注入與流出開口。In a preferred embodiment, the inside of the shaft is hollow, and there are injection and outflow openings.

在一種較佳的實施型態中，該軸心的內部為中空，且設有徑向流出開口。In a preferred embodiment, the inside of the shaft is hollow and is provided with a radial outflow opening.

在一種較佳的實施型態中，該軸心的一端為操作端，可使用對應的工具來轉動。In a preferred embodiment, one end of the shaft is the operating end, which can be rotated with a corresponding tool.

在一種較佳的實施型態中，該操作端為六角形。In a preferred embodiment, the operating end is hexagonal.

底下藉由具體實施例詳加說明，當更容易瞭解本發明之目的、技術內容、特點及其所達成之功效。Detailed descriptions are given below by specific embodiments, so that it will be easier to understand the purpose, technical content, features, and effects of the present invention.

本發明中的圖式屬於示意，主要意在表示各結構部分的作用與其間的相互關係，至於形狀、厚度與寬度則在實施時可以調整改變。The drawings in the present invention are schematic, and are mainly intended to show the function of each structural part and the relationship between them. As for the shape, thickness and width, they can be adjusted and changed during implementation.

請參考第1-3圖，其顯示本發明之三角連桿式椎骨撐開裝置100的一個實施例。第1圖顯示本發明裝置的收合狀態、第2圖本發明裝置的撐開狀態、第3圖顯示本發明裝置的爆炸圖(包含裝置組裝狀態與零件分解狀態)。Please refer to Figures 1-3, which show an embodiment of the triangular link type vertebral expansion device 100 of the present invention. Figure 1 shows the folded state of the device of the present invention, Figure 2 shows the expanded state of the device of the present invention, and Figure 3 shows an exploded view of the device of the present invention (including the assembled state and the disassembled state of the parts).

本發明之三角連桿式椎骨撐開裝置100包含軸心101、固定部103、移動塊104、第一連接桿105、第二連接桿 106。軸心101穿過固定部103、並可相對於固定部103而轉動；移動塊104套連在軸心101上，並可因應軸心101的轉動而在軸心101的軸向上移動；第一連接桿105與固定部103彼此以可相對轉動的方式連接(在本實施例中，例如透過容許相對轉動之連接部107A來連接)；第一連接桿105與第二連接桿106彼此以可相對轉動的方式連接(在本實施例中，例如透過容許相對轉動之連接部107C來連接)；第二連接桿 106與移動塊104彼此以可相對轉動的方式連接(在本實施例中，例如透過容許相對轉動之連接部107B來連接)。各連接部107A、107B、107C可以各自為單獨的零件，或是與固定部、第一連接桿105、第二連接桿106、移動塊104之一，一體成型合併構成一個零件。詳言之，連接部107A可以與固定部103一體成型、或是與第一連接桿105一體成型，連接部107B可以與移動塊104一體成型、或是與第二連接桿 106一體成型，連接部107C可以與第一連接桿105一體成型、或是與第二連接桿 106一體成型。The triangular connecting rod type vertebral expansion device 100 of the present invention includes a shaft 101, a fixed portion 103, a moving block 104, a first connecting rod 105, and a second connecting rod 106. The shaft 101 passes through the fixed portion 103 and can rotate relative to the fixed portion 103; the moving block 104 is sleeved on the shaft 101 and can move in the axial direction of the shaft 101 in response to the rotation of the shaft 101; The connecting rod 105 and the fixing part 103 are connected to each other in a relatively rotatable manner (in this embodiment, for example, through the connecting part 107A that allows relative rotation to be connected); the first connecting rod 105 and the second connecting rod 106 are relatively rotatable to each other Rotational connection (in this embodiment, for example, through the connecting portion 107C that allows relative rotation to be connected); the second connecting rod 106 and the moving block 104 are connected in a relatively rotatable manner (in this embodiment, for example, through The connection part 107B that allows relative rotation is connected). Each connecting part 107A, 107B, 107C may be a separate part, or may be integrally formed with one of the fixed part, the first connecting rod 105, the second connecting rod 106, and the moving block 104 to form a single part. In detail, the connecting portion 107A may be integrally formed with the fixed portion 103 or the first connecting rod 105, and the connecting portion 107B may be integrally formed with the moving block 104 or integrally formed with the second connecting rod 106. The connecting part 107C can be integrally formed with the first connecting rod 105 or integrally formed with the second connecting rod 106.

在一較佳實施例中，軸心101的兩端均可再栓上螺帽109，以防止固定部103與軸心101完全脫離、及/或防止移動塊104與軸心101完全脫離。但如並無脫離的顧慮，則螺帽109並非必須而可以省略。此外，如有脫離的顧慮，螺帽也並非唯一防止脫離的方式，也可以採用其他方式來阻擋或限制移動塊104的活動範圍。在一較佳實施例中，請參閱第3圖，軸心101包含凸緣102，以便利抵接固定部103，這樣可藉左端的螺帽109使固定部103靠緊凸緣102來定位。在一較佳實施例中，固定部103的內部和軸心101的對應外周為平滑無螺紋，以便利軸心101相對於固定部103而轉動。In a preferred embodiment, both ends of the shaft 101 can be bolted with nuts 109 to prevent the fixed portion 103 from being completely separated from the shaft 101, and/or to prevent the moving block 104 from being completely separated from the shaft 101. However, if there is no concern about separation, the nut 109 is not necessary and can be omitted. In addition, if there is a concern about detachment, the nut is not the only way to prevent detachment, and other methods may also be used to block or limit the range of movement of the moving block 104. In a preferred embodiment, referring to FIG. 3, the shaft 101 includes a flange 102 to facilitate abutting against the fixing portion 103, so that the fixing portion 103 can be positioned against the flange 102 by the nut 109 at the left end. In a preferred embodiment, the inner portion of the fixing portion 103 and the corresponding outer periphery of the shaft center 101 are smooth and threadless to facilitate the rotation of the shaft center 101 relative to the fixing portion 103.

請參閱第1圖對照第2圖，第1圖顯示本發明裝置的收合狀態、第2圖本發明裝置的撐開狀態。三角連桿式椎骨撐開裝置100的右端為前端、左端為後端；當施行手術(例如微創手術)將三角連桿式椎骨撐開裝置100植入人體內時，是先將三角連桿式椎骨撐開裝置100的右端放入。Please refer to Fig. 1 and Fig. 2. Fig. 1 shows the folded state of the device of the present invention, and Fig. 2 shows the expanded state of the device of the present invention. The right end of the triangular connecting rod type vertebral expansion device 100 is the front end, and the left end is the back end; when an operation (such as minimally invasive surgery) is performed to implant the triangular connecting rod type vertebral expansion device 100 into the human body, the triangular connecting rod is first The right end of the vertebral support device 100 is inserted.

軸心101的左端(後端)為操作端101A，施行手術者可以使用對應的器械來轉動操作端101A ，使得軸心101相對於固定部103而轉動。(在圖示實施例中，操作端101A可使用六角形的工具來轉動；但本發明不限於此，操作端101A可設計為任何可控轉動的型式，而施行手術者使用對應的器械來轉動)。The left end (rear end) of the shaft 101 is the operating end 101A, and the operator can use a corresponding instrument to rotate the operating end 101A so that the shaft 101 rotates relative to the fixed portion 103. (In the illustrated embodiment, the operating end 101A can be rotated using a hexagonal tool; but the present invention is not limited to this, the operating end 101A can be designed in any controllable rotation type, and the operator uses the corresponding instrument to rotate ).

當軸心101相對於固定部103而轉動時，固定部103和移動塊104的距離便發生改變。當軸心101在固定部103內轉動，導致移動塊104遠離固定部103時，第一連接桿105與第二連接桿 106便被往上下方撐開，在上下方分別形成三角形，達成撐開脊椎骨使其復位的效果。在一較佳實施例中，為使移動塊104可因應軸心101的轉動而在軸心101的軸向上移動、且於到達定位後可以固定而不會任意改變位置，軸心101的外圍及移動塊104的內緣宜設置螺紋。此外，在一較佳實施例中，如圖所示，第一連接桿105較長而第二連接桿 106較短。這樣，在收合狀態時，第一連接桿105與第二連接桿 106可以緊貼軸心101，便於在手術初期以較小的尺寸來植入人體。若第一連接桿105較短而第二連接桿 106較長、或是兩者等長，則整體裝置所占體積就會較大，較不利於施行手術。When the shaft 101 rotates relative to the fixed portion 103, the distance between the fixed portion 103 and the moving block 104 changes. When the shaft 101 rotates in the fixed portion 103, causing the moving block 104 to move away from the fixed portion 103, the first connecting rod 105 and the second connecting rod 106 are stretched up and down, forming triangles on the top and bottom to achieve the expansion. The effect of the spine to make it reset. In a preferred embodiment, in order that the moving block 104 can move in the axial direction of the shaft 101 in response to the rotation of the shaft 101, and can be fixed after reaching the positioning without changing the position arbitrarily, the periphery of the shaft 101 and The inner edge of the moving block 104 should be provided with threads. In addition, in a preferred embodiment, as shown in the figure, the first connecting rod 105 is longer and the second connecting rod 106 is shorter. In this way, in the folded state, the first connecting rod 105 and the second connecting rod 106 can be close to the axis 101, which is convenient for implanting the human body with a smaller size in the initial stage of the operation. If the first connecting rod 105 is shorter and the second connecting rod 106 is longer, or both have the same length, the overall device will occupy a larger volume, which is not conducive to performing surgery.

當第一連接桿105與第二連接桿 106被撐開時，第一連接桿105與第二連接桿 106彼此會相對轉動，而第一連接桿105與第二連接桿 106也會分別相對於固定部及相對於移動塊104而轉動。因此，如前所述，這些零件彼此間需要以可相對轉動的方式來彼此連接。達成可相對轉動的連接方式有許多種，本發明並不限於其中任何一種。舉例而言，使用第3圖上方所示的圓形連結軸加上栓帽，就是其中一種可採的方式。此外，請參閱第4圖，顯示根據本發明另一實施例之三角連桿式椎骨撐開裝置200的撐開狀態，以及第5圖，顯示第4圖實施例中之第一連接桿105與第二連接桿106。在本實施例中，舉例顯示第一連接桿105與第二連接桿106的另一種連接方式，在此方式中，連接部107C與第一連接桿105一體成型，而第二連接桿106上設置對應的凹口(參閱虛線方塊所標示處)，這樣，第一連接桿105與第二連接桿 106同樣可以相對轉動。當然，若使連接部107C與第二連接桿106一體成型，而第一連接桿105上設置對應的凹口，也是可行的。以上舉例顯示：達成可相對轉動的連接方式有許多種，皆應屬於本發明的範圍。When the first connecting rod 105 and the second connecting rod 106 are stretched, the first connecting rod 105 and the second connecting rod 106 will rotate relative to each other, and the first connecting rod 105 and the second connecting rod 106 will also be relative to each other. The fixed part rotates relative to the moving block 104. Therefore, as mentioned above, these parts need to be connected to each other in a relatively rotatable manner. There are many ways to achieve relative rotation, and the present invention is not limited to any one of them. For example, using the circular connecting shaft shown at the top of Figure 3 and the cap is one of the possible ways. In addition, please refer to Fig. 4, which shows the expansion state of the triangular connecting rod type vertebral expansion device 200 according to another embodiment of the present invention, and Fig. 5, which shows the first connecting rod 105 and the first connecting rod 105 in the embodiment of Fig. 4 The second connecting rod 106. In this embodiment, another way of connecting the first connecting rod 105 and the second connecting rod 106 is shown as an example. In this way, the connecting portion 107C is integrally formed with the first connecting rod 105, and the second connecting rod 106 is provided with Corresponding notches (refer to the place marked by the dashed box), in this way, the first connecting rod 105 and the second connecting rod 106 can also rotate relative to each other. Of course, if the connecting portion 107C and the second connecting rod 106 are integrally formed, and a corresponding notch is provided on the first connecting rod 105, it is also feasible. The above examples show that there are many ways to achieve relatively rotatable connection, which should all fall within the scope of the present invention.

在一較佳實施例中，軸心101為中空，且設有注入與流出開口，以便利在植入人體之後，還可以從注入開口經由軸心101的中空部分注入填充物，例如骨水泥(bone cement) 或是補骨材料（bone graft）等，而由流出開口流出。請參閱第3圖，填充物除了從軸心101的後端(左端)注入開口穿過軸心101的內部，由軸心101的右端(流出開口)注入人體之外，在一較佳實施例中，軸心101還可以在徑向上設置流出開口(第3、4圖中舉例顯示開口101B)，以增加填充物的釋放管道。開口101B的數目與尺寸形狀，圖示僅是舉例，本發明並不限於此。In a preferred embodiment, the shaft 101 is hollow and is provided with injection and outflow openings to facilitate the injection of fillers, such as bone cement, through the hollow part of the shaft 101 from the injection opening after implantation in the human body. bone cement) or bone graft, etc., and flow out from the outflow opening. Please refer to Figure 3, except that the filler passes through the inside of the shaft 101 from the rear end (left end) of the shaft 101 and is injected into the human body from the right end (outflow opening) of the shaft 101, a preferred embodiment The shaft 101 can also be provided with an outflow opening in the radial direction (the opening 101B is shown as an example in Figures 3 and 4) to increase the release pipeline of the filler. The number and size of the openings 101B are shown as examples only, and the present invention is not limited thereto.

請再參閱第6、7圖，分別顯示根據本發明另一實施例之三角連桿式椎骨撐開裝置的撐開狀態與收合狀態。本實施例顯示：第一連接桿105與第二連接桿106可以僅設置於軸心101的單側，而不必須對稱設置於雙側。第6、7圖顯示僅在單側設置第一連接桿105與第二連接桿106，第1-5圖顯示在雙側對稱設置第一連接桿105與第二連接桿106，依此類推，當然，在本發明的精神下，例如也可以設置三組或更多組第一連接桿105與第二連接桿106，以對稱或不對稱於軸心101的方式設置。Please refer to Figures 6 and 7, which respectively show the expanded state and the closed state of the triangular link type vertebral expansion device according to another embodiment of the present invention. This embodiment shows that the first connecting rod 105 and the second connecting rod 106 can only be arranged on one side of the shaft 101, and not necessarily arranged symmetrically on both sides. Figures 6 and 7 show that only the first connecting rod 105 and the second connecting rod 106 are arranged on one side, and Figures 1-5 show that the first connecting rod 105 and the second connecting rod 106 are arranged symmetrically on both sides, and so on. Of course, under the spirit of the present invention, for example, three or more sets of the first connecting rod 105 and the second connecting rod 106 may be provided, which are arranged symmetrically or asymmetrically to the axis 101.

以上已針對較佳實施例來說明本發明，唯以上所述者，僅係為使熟悉本技術者易於了解本發明的內容而已，並非用來限定本發明之權利範圍。在本發明之相同精神下，熟悉本技術者可以思及各種等效變化。例如，在不影響主要功能的前提下，可加入其他零件、或是將實施例中描述為分開獨立的至少一零件，合成為一體的單一零件；舉例而言，第3圖上方的第二連接桿 106可以合為單一零件，下方的第二連接桿 106也可以合為單一零件。又例如，圖中顯示的第一連接桿105與第二連接桿 106的數目和形狀，也都可以改變。又例如，凡此種種，皆可根據本發明的教示類推而得。因此，本發明的範圍應涵蓋上述及其他所有等效變化。The present invention has been described with reference to the preferred embodiments above, but the above is only for making the content of the present invention easier for those skilled in the art, and is not used to limit the scope of rights of the present invention. Under the same spirit of the present invention, those skilled in the art can think of various equivalent changes. For example, under the premise of not affecting the main function, other parts can be added, or at least one part described as separate and independent in the embodiment can be combined into a single part; for example, the second part at the top of Figure 3 The connecting rod 106 may be combined into a single part, and the second connecting rod 106 below may also be combined into a single part. For another example, the number and shape of the first connecting rod 105 and the second connecting rod 106 shown in the figure can also be changed. For another example, all of these can be derived by analogy according to the teachings of the present invention. Therefore, the scope of the present invention should cover all the above and other equivalent changes.

100,200:三角連桿式椎骨撐開裝置 101:軸心 101A:操作端 101B:開口 102:凸緣 103:固定部 104:移動塊 105:第一連接桿 106:第二連接桿 107A、107B、107C:(容許相對轉動之)連接部 109:螺帽100,200: Triangular link type vertebral support device 101: Axis 101A: Operation side 101B: opening 102: flange 103: fixed part 104: move block 105: first connecting rod 106: second connecting rod 107A, 107B, 107C: (allowing relative rotation) connecting part 109: Nut

第1圖顯示根據本發明一實施例之三角連桿式椎骨撐開裝置的收合狀態。 第2圖顯示根據本發明一實施例之三角連桿式椎骨撐開裝置的撐開狀態。 第3圖顯示根據本發明一實施例之三角連桿式椎骨撐開裝置的爆炸圖。 第4圖顯示根據本發明另一實施例之三角連桿式椎骨撐開裝置的撐開狀態。 第5圖顯示第4圖實施例中之第一與第二連接桿。 第6圖顯示根據本發明另一實施例之三角連桿式椎骨撐開裝置的撐開狀態。 第7圖顯示根據本發明另一實施例之三角連桿式椎骨撐開裝置的收合狀態。Figure 1 shows the folded state of the triangular link type vertebral expansion device according to an embodiment of the present invention. Figure 2 shows the expansion state of the triangular link type vertebral expansion device according to an embodiment of the present invention. Figure 3 shows an exploded view of the triangular link type vertebral expansion device according to an embodiment of the present invention. Figure 4 shows the expansion state of the triangular link type vertebral expansion device according to another embodiment of the present invention. Figure 5 shows the first and second connecting rods in the embodiment shown in Figure 4. Figure 6 shows the expansion state of the triangular link type vertebral expansion device according to another embodiment of the present invention. Figure 7 shows the folded state of the triangular link type vertebral expansion device according to another embodiment of the present invention.

100:三角連桿式椎骨撐開裝置100: Triangular connecting rod type vertebral support device

101:軸心101: Axis

101A:操作端101A: Operation side

101B:開口101B: opening

102:凸緣102: flange

103:固定部103: fixed part

104:移動塊104: move block

105:第一連接桿105: first connecting rod

106:第二連接桿106: second connecting rod

107A、107B、107C:(容許相對轉動之)連接部107A, 107B, 107C: (allowing relative rotation) connecting part

109:螺帽109: Nut

Claims (9)

一種三角連桿式椎骨撐開裝置，包含： 一軸心； 一固定部，其中該軸心穿過該固定部、並可相對於該固定部而轉動； 一移動塊，套連在該軸心上，並可因應軸心的轉動而在軸心的軸向上移動； 至少一第一連接桿，與固定部彼此以可相對轉動的方式連接； 至少一第二連接桿，與移動塊彼此以可相對轉動的方式連接，且與對應的第一連接桿彼此以可相對轉動的方式連接； 藉此，當軸心在固定部內轉動，導致移動塊遠離固定部時，第一連接桿與第二連接桿被撐開，以撐開脊椎骨。A triangular connecting rod type vertebral support device, comprising: One axis A fixed portion, wherein the shaft center passes through the fixed portion and can rotate relative to the fixed portion; A moving block is sleeved on the shaft and can move in the axial direction of the shaft in response to the rotation of the shaft; At least one first connecting rod is connected to the fixing part in a relatively rotatable manner; At least one second connecting rod is connected to the moving block in a relatively rotatable manner, and is connected to the corresponding first connecting rod in a relatively rotatable manner; Thereby, when the shaft center rotates in the fixed part, causing the moving block to move away from the fixed part, the first connecting rod and the second connecting rod are stretched to stretch the vertebrae. 如申請專利範圍第1項所述之三角連桿式椎骨撐開裝置，其中該第一連接桿較該第二連接桿為長。In the triangular connecting rod type vertebral expansion device described in the first item of the scope of patent application, the first connecting rod is longer than the second connecting rod. 如申請專利範圍第1項所述之三角連桿式椎骨撐開裝置，其中該軸心的外圍及該移動塊的內緣設有螺紋。For the triangular connecting rod type vertebral expansion device described in item 1 of the scope of patent application, the outer periphery of the shaft center and the inner edge of the moving block are provided with threads. 如申請專利範圍第1項所述之三角連桿式椎骨撐開裝置，其中該軸心的外圍包含一凸緣，可供抵接該固定部。In the triangular connecting rod type vertebral expansion device described in item 1 of the scope of patent application, the periphery of the shaft center includes a flange for abutting against the fixing portion. 如申請專利範圍第1項所述之三角連桿式椎骨撐開裝置，更包含至少一螺帽，栓於該軸心的至少一端。The triangular connecting rod type vertebral expansion device described in item 1 of the scope of patent application further includes at least one nut bolted to at least one end of the shaft center. 如申請專利範圍第1項所述之三角連桿式椎骨撐開裝置，其中該軸心的內部為中空，且設有注入與流出開口。The triangular connecting rod type vertebral expansion device described in item 1 of the scope of patent application, wherein the shaft is hollow inside, and is provided with injection and outflow openings. 如申請專利範圍第6項所述之三角連桿式椎骨撐開裝置，其中該軸心在徑向設有流出開口。As described in item 6 of the scope of patent application, the triangular connecting rod type vertebral expansion device, wherein the shaft is provided with an outflow opening in the radial direction. 如申請專利範圍第1項所述之三角連桿式椎骨撐開裝置，其中該軸心的一端為操作端，可使用對應的工具來轉動。For the triangular connecting rod type vertebral expansion device described in item 1 of the scope of patent application, one end of the shaft is the operating end, which can be rotated by using a corresponding tool. 如申請專利範圍第8項所述之三角連桿式椎骨撐開裝置，其中該操作端為六角形。The triangular connecting rod type vertebral expansion device described in item 8 of the scope of patent application, wherein the operating end is hexagonal.
TW108141587A 2019-11-15 2019-11-15 Expandable vertebral device with triangular connection beam TW202120031A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
TW108141587A TW202120031A (en) 2019-11-15 2019-11-15 Expandable vertebral device with triangular connection beam
KR1020200150025A KR20210060328A (en) 2019-11-15 2020-11-11 Expandable vertebral device with triangular connection beam
US17/096,707 US20210145601A1 (en) 2019-11-15 2020-11-12 Expandable vertebral device with triangular connection beam
EP20207458.9A EP3824833A1 (en) 2019-11-15 2020-11-13 Expandable vertebral device with triangular connection beam
JP2020189278A JP2021079100A (en) 2019-11-15 2020-11-13 Triangular link-type expandable vertebral device

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